Presentation is loading. Please wait.

Presentation is loading. Please wait.

Reduced Structure Inverter Fed Electric Motor Drives: an Attempt to Improve the Cost-effectiveness, the Compactness and the Reliability of Electric and.

Similar presentations


Presentation on theme: "Reduced Structure Inverter Fed Electric Motor Drives: an Attempt to Improve the Cost-effectiveness, the Compactness and the Reliability of Electric and."— Presentation transcript:

1

2 Reduced Structure Inverter Fed Electric Motor Drives: an Attempt to Improve the Cost-effectiveness, the Compactness and the Reliability of Electric and Hybrid Propulsion Systems Research Unit on Renewable Energies & Electric Vehicles University of Sfax Sfax Engineering School Tunisia Ahmed Masmoudi

3 Life Cycle Protection: a Universal Commitment Life Cycle Protection: a Universal Commitment

4 Automotive Industry: Flashback Automotive Industry: Flashback Till the 60th, automotive manufacturers didnt worry about the cost of fuel. They have never heard of air pollution, and they have never thought about life cycle. Ease of operation with reduced maintenance costs meant everything back then.

5 Air Pollution: the Major Drawback of ICE Air Pollution: the Major Drawback of ICE ICE air pollutio n

6 Automotive Industry: New Trends Times have changed. In recent years, clean air mandates are driving the market to embrace new propulsion systems in order to substitute or to assist the ICE, resulting in electric and hybrid vehicles.

7 Series Hybrid Powertain Series Hybrid Powertain

8 Parallel Hybrid Powertrain

9 Series/Parallel Hybrid Powertrain Series/Parallel Hybrid Powertrain

10 Electric Machine Design: New Trends Electric Machine Design: New Trends New approach which considers that the best machine design is the one providing the optimum match between the machine and the associated converter leading to the so-called converter-fed machines.

11 Electric Machine Drives: Conventional SSTPI Electric Machine Drives: Conventional SSTPI Electric Motor Vc S3S2S1 S4 S5 S6 A B C

12 Reduced Structure Inverters: What is gained? Lower number of the power switches and of the associated control boards with respect to the conventional SSTPI Improvement of the cost-effectiveness Improvement of the cost-effectiveness Decrease of the occupied volume Decrease of the occupied volume Enhanced reliability thanks to the reduction of the luck of failures Enhanced reliability thanks to the reduction of the luck of failures

13 Outline Study statement FSTPI fed electric machine drives FSTPI fed BDCM drives FSTPI fed IM drives TSTPI fed electric machine drives TSTPI fed BDCM drives TSTPI fed IM drives Conclusion and Outlook

14 Four-switch Three-phase Inverter Fed Electric Machine Drives

15 Connections of the FSTPI

16 FSTPI Fed Brushless DC Motor Drives

17 FSTPI Fed BDCM Drive: Principle of Operation

18 FSTPI Fed BDCM: Principle of Operation

19 FSTPI Fed BDCM Drive: Principle of Operation

20

21

22

23 FSTPI Fed BDCM Drive: Linear Speed Control

24 FSTPI Fed BDCM Drive: Start-up

25 SSTPI Fed BDCM Drive: Start-up

26 FSTPI Fed BDCM Drive: Start-up

27 SSTPI Fed BDCM Drive: Start-up

28 FSTPI Fed BDCM Drive: Steady-state Operation

29 SSTPI Fed BDCM Drive: Steady-state Operation

30 FSTPI Fed BDCM Drive: Fuzzy Speed Control

31 FSTPI Fed Induction Motor Drives

32 FSTPI Fed IM Drive: Direct Torque Control Scheme

33 ΦsΦs θs θs VαVα VβVβ V2V2 V1V1 V3V3 V4V4 V5V5 V6V6 V0V0 V7V7 DTC of FSTPI Fed IM Drive: Vector Selection Table V4V4 V3V3 V2V2 V1V1 V7V7 V0V0 V7V7 V0V0 V7V7 V0V0 V2V2 V1V1 V6V6 V5V5 V4V4 V3V3 V5V5 V4V4 V3V3 V2V2 V1V1 V6V6 V0V0 V7V7 V0V0 V7V7 V0V0 V7V7 V1V1 V6V6 V5V5 V4V4 V3V3 V2V2 S6S6 S5S5 S4S4 S3S3 S2S2 S1S cTcT c V5V5 V6V6

34 3 2 1 VαVα VβVβ 4 V1V1 V3V3 V4V4 V2V2 V2V2 V4V4 V8V8 V6V6 V3V3 V1V1 V5V5 V7V7 DTC of FSTPI Fed IM Drive: Vector Selection Table

35 7 V αs V βs V1V1 V2V2 V4V4 V8V8 V6V6 V7V7 V1V1 V3V3 V5V V αs V βs V1V1 V2V2 V4V4 V8V8 V6V6 6 8 V7V7 V1V1 V3V3 5 V5V5 DTC of FSTPI Fed IM Drive: Vector Selection Table

36 * m * m m m SSTPIFSTPI DTC of a FSTPI Fed IM Drive: Transient Behavior During Start-up

37 SSTPIFSTPI l T l T

38 SSTPI FSTPI i as [A] Time [sec] i as [A] Time [sec]

39 SSTPIFSTPI DTC of a FSTPI Fed IM Drive: Transient Behavior During Start-up -0,8-0, αs [Wb] βs [Wb] -0,8-0, αs [Wb] βs [Wb]

40 SSTPIFSTPI DTC of a FSTPI Fed IM Drive: Steady-state Features

41 SSTPIFSTPI ibsicsias ibsics

42 SSTPI FSTPI DTC of a FSTPI Fed IM Drive: Steady-state Features Amplitude [A] Harmonic rank Amplitude [A] Harmonic rank

43 Three-switch Three-phase Inverter Fed Electric Machine Drives

44 Connections of the TSTPI

45 TSTPI Fed Brushless DC Motor Drives

46 TSTPI Fed BDCM Drive: Principle of operation

47 Principle of Operation

48 TSTPI Fed BDCM Drive: Linear Speed Control

49 Time (s) (N.m) T em T l Time (s) (N.m) T em T l Electromagnetic and Load Torques SSTPI TSTPI TSTPI Fed BDCM Drive: Start-up

50 Time (s) (A) i a i a (A) Time (s) TSTPI Fed BDCM Drive: Start-up Phase Current

51 Eeq R Cdl Rtc Zw Zi Modified Randles Equivalent Circuit of an Ni-mH Battery C R1 C R2 C Rn Accounting for the Equivalent Circuit of the Battery Pack Accounting for the Equivalent Circuit of the Battery Pack

52 Time (s) i a (A) Ideal battery pack Equivalent circuit of the battery pack accounted for Time (s) i a (A) Accounting for the Equivalent Circuit of the Battery Pack Accounting for the Equivalent Circuit of the Battery Pack

53 Ideal battery pack i a (A) (c2) Equivalent circuit of the battery pack Accounting for the Equivalent Circuit of the Battery Pack Accounting for the Equivalent Circuit of the Battery Pack i a (A) Time (s) i a (A) Time (s)

54 TSTPI Fed Induction Motor Drives

55 i1i1 Induction motor S2 i2i2 i3i3 S1 S3 * + - m m Speed controller Tem * K1K2 K3 Bang-bang current controllers Park transform 2 3 Currents (a-b-c) Currents (1-2-3) i2i2 i3i3 i1i1 * * * ibib icic iaia * * * i2i2 i1i1 i3i3 * i ds + - Torque controller i qs * + + p ωsωs θs θs Currents (a-b-c) Currents (1-2-3) Park transform 3 2 ibib icic iaia i ds i qs ФrФr Rotor flux controller ФrФr * ωrωr TSTPI Fed IM Drive: RFOC Implementation Scheme

56 SSTPI TSTPI Time (s) (rpm) * m m Time (s) (rpm) * m m TSTPI Fed IM Drive Performance Under RFOC Reference and motor speeds

57 SSTPI Time (s) (N.m) T em T l TSTPI Time (s) (N.m) T em T l TSTPI Fed IM Drive Performance Under RFOC Electromagnetic and load torque

58 The a phase current SSTPI TSTPI Time (s) ia (A) Time (s) ia (A) Steady-state phase current profiles Time (s) (A)ia ib ic Time (s) (A) ia ib ic TSTPI Fed IM Drive Performance Under RFOC

59 TSTPI Fed IM Drive: Sensorless RFOC Strategy

60 Sensorless RFOC strategy Conventional RFOC strategy Reference and motor speeds Time (s) (rpm) * m m Time (s) (rpm) * m m TSTPI Fed IM Drive Sensorless RFOC

61 Speed estimation error Time (s) m - est TSTPI Fed IM Drive Sensorless RFOC

62 Conclusion Improvement of the cost-effectiveness, the compactness and the reliability of electric and hybrid propulsion systems gained by the integration of reduced structure inverters Improvement of the cost-effectiveness, the compactness and the reliability of electric and hybrid propulsion systems gained by the integration of reduced structure inverters Feasibility thanks to the availability of the battery pack Feasibility thanks to the availability of the battery pack Both FSTPI and TSTPI associated with machines fed by: Both FSTPI and TSTPI associated with machines fed by: rectangular currents (BDCM) rectangular currents (BDCM) sinusoidal currents (IM) sinusoidal currents (IM) Almost the same performance as those achieved with conventional SSTPI Almost the same performance as those achieved with conventional SSTPI Limitation of the speed range due to the reduction of the average DC voltage supply Limitation of the speed range due to the reduction of the average DC voltage supply

63 Outlook The development of experimental test benches for the sake of the validation of the predicted performance The development of experimental test benches for the sake of the validation of the predicted performance Rethought the capabilities of reduced structure inverters from a troubleshooting point of view in an attempt to solve temporarily SSTPI failures Rethought the capabilities of reduced structure inverters from a troubleshooting point of view in an attempt to solve temporarily SSTPI failures Solve the problem of speed limitation through a reconsideration of the machine design in order to extend the flux weakening range Solve the problem of speed limitation through a reconsideration of the machine design in order to extend the flux weakening range

64 Acknowledgment These works were partly supported by Allison Transmission Division of GMs Allison Transmission Division of GMs (ATDGM, Indiana, USA). (ATDGM, Indiana, USA). Many thanks should be addressed to Dr. Many thanks should be addressed to Dr. Ahmed El-Antably, staff project engineer with ATDGM, for the valuable discussions. Ahmed El-Antably, staff project engineer with ATDGM, for the valuable discussions.

65 Acknowledgment Full recognition needs to be given here to Prof. Abdessattar Guermazi, to Asso. Prof. to Prof. Abdessattar Guermazi, to Asso. Prof. Asma Ben Rhouma and Bassem EL Badsi, and Asma Ben Rhouma and Bassem EL Badsi, and to Ass. Tec. Mariem Sahbi and Mourad Masmoudi. to Ass. Tec. Mariem Sahbi and Mourad Masmoudi.

66 Reduced Structure Inverter Fed Electric Motor Drives: an Attempt to Improve the Cost-effectiveness, the Compactness and the Reliability of Electric and Hybrid Propulsion Systems Research Unit on Renewable Energies & Electric Vehicles University of Sfax Sfax Engineering School Tunisia Ahmed Masmoudi

67 4 Switch 3 Phase Inverter Fed Brushless DC Motor

68 Transverse Flux Permanent Magnet Machines Transverse Flux Permanent Magnet Machines

69 Connections of the TSTPI

70 Achievements 1 patent financed by Allison Transmission Division of GM (IN, USA) 1 patent financed by Allison Transmission Division of GM (IN, USA) 6 papers in the Int. J. for Computation & Mathematics in Electrical and Electronic Engineering (COMPEL) 6 papers in the Int. J. for Computation & Mathematics in Electrical and Electronic Engineering (COMPEL) 2 keynote speeches in the Int. Workshop on Electric and Hybrid Automotive Technologies (WAT07, Sfax, Tunisia) 2 keynote speeches in the Int. Workshop on Electric and Hybrid Automotive Technologies (WAT07, Sfax, Tunisia) 8 communications in conferences: 8 communications in conferences: 1 in EPE03 (Toulouse, France) 1 in EPE03 (Toulouse, France) 3 in SSD05 and SSD07 (Sousse and Hammamet, Tunisia) 3 in SSD05 and SSD07 (Sousse and Hammamet, Tunisia) 4 in EVER07 (Monte-Carlo, Monaco) 4 in EVER07 (Monte-Carlo, Monaco) Diplomas Diplomas 1 HDR supported 1 HDR supported 3 PhD in progress 3 PhD in progress 4 Masters (3 supported, 1 in progress) 4 Masters (3 supported, 1 in progress) TSTPI-BDCM drive test bench under development TSTPI-BDCM drive test bench under development


Download ppt "Reduced Structure Inverter Fed Electric Motor Drives: an Attempt to Improve the Cost-effectiveness, the Compactness and the Reliability of Electric and."

Similar presentations


Ads by Google